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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6551294218

Certificate GIA 6551294218

Diamond specifications and retailer prices

From $1,177 CAD
$842 USD
As of November 1, 2026
Save $1,239 CAD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,415 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551294218. Listed at 18 retailers as of November 1, 2026, with prices from $1,177 to $2,415, a $1,239 spread on the same certified stone. MOH London lists it at $2,415. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.67°
OriginNatural
Grading LabGIA
CertificateGIA 6551294218
Dimensions8.23 × 4.25 × 2.55 mm
L/W Ratio1.94
Key to symbols
Feather
Top View
8.23 mm4.25 mm0.50 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551294218
Side View
Table 64.0%Crown 32.67°Girdle: STK-VTKPavilionCulet: NoneDepth 60.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,415 CAD|Low: $1,115 CAD|High: $4,135 CAD|Avg: $1,735 CAD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 18$1,177 CAD
Retailer 15$1,216 CAD
Retailer 8$1,318 CAD
Retailer 10$1,318 CAD
Retailer 16$1,332 CAD
Retailer 4$1,369 CAD
Retailer 5$1,430 CAD
Retailer 6$1,505 CAD
Retailer 9$1,522 CAD
Retailer 17$1,530 CAD
Retailer 14$1,540 CAD
Retailer 11$1,543 CAD
Retailer 2$1,618 CAD
Retailer 12$1,856 CAD
Retailer 3$1,982 CAD
Retailer 13$2,035 CAD
MOH London$2,415 CAD
Retailer 7$4,135 CAD

36 data points across 18 retailers

18 retailers$1,177 CAD to $2,415 CAD

B+
Cheapest Retailer
-
$1,177 CAD
$842 USD
B+
Retailer 2
-
$1,216 CAD
$870 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,318 CAD
$943 USD
View
B+
Retailer 4
-
$1,318 CAD
$943 USD
View
B
Retailer 5
-
$1,332 CAD
$953 USD
View
B
Retailer 6
-
$1,369 CAD
$980 USD
View
B+
Retailer 7
-
$1,430 CAD
$1,023 USD
View
B
Retailer 8
-
$1,505 CAD
$1,077 USD
View
B
Retailer 9
-
$1,522 CAD
$1,089 USD
View
B
Retailer 10
-
$1,530 CAD
$1,095 USD
View
B
Retailer 11
-
$1,540 CAD
$1,102 USD
View
B
Retailer 12
-
$1,543 CAD
£870 GBP
View
B
Retailer 13
-
$1,618 CAD
£912 GBP
View
B
Retailer 14
-
$1,856 CAD
€1,265 EUR
View
Retailer 15
-
$1,982 CAD
A$2,183 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$2,035 CAD
ZAR 23,528 ZAR
View
Most Expensive
B
MOH London
C022C720D · Nov 1
$2,415 CAD
£1,361 GBP
View
16 more retailers have this diamond
Prices start from $1,177 CADSave up to $1,239 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.50ct Marquise
$1,177 CAD